11-10-2010
Adding existing set of records in the same file
I have a file with 50,000 records in it, i have a requirement to use the same 50,000 records and add them 4 times to the same file to make a total of 200,000 records. I was wondering how to do this using ksh. Any help is greatly appreciated.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Dear All,
I need to add a header of one line to an already existing file.
I know that it can be achieved by the following:
echo "Header" > newfile
cat file1 >> newfile
But my problem is that file is huge and there is no space for creating a new file every time. Is there a way that I can... (5 Replies)
Discussion started by: shash
5 Replies
2. Shell Programming and Scripting
not required this time (36 Replies)
Discussion started by: Sandeep_Malik
36 Replies
3. Shell Programming and Scripting
Hi All,
I have two files say file1 and file2.
I want to check the number of records in file1 and if its atleast 2 (i.e., 2 or greater than 2 ) then I have to check records in file2 .If records in file2 is atleast 1 (i.e. if its not empty ) i have to set some conditions .
Could you pls... (3 Replies)
Discussion started by: mavesum
3 Replies
4. Shell Programming and Scripting
I have a source file like this,
L4058S462 34329094 F51010141TK1070000483L4058S462 34329094 0232384840 381892 182 5690
L4058S462 34329094 F51020141FIRST CLEARING, LLC A/C 3432-9094
L4058S462 34329094 F51030141JOHAN HOLMQVIST ... (1 Reply)
Discussion started by: saravanamr
1 Replies
5. Shell Programming and Scripting
Hi Friends,
I want to know the command to add a new file in a existing tar file.
For Ex:
I have a tar file file1.tar with the contents
one.txt
two.txt
three.txt
Now I need to add file four.txt to this existing tar file, how can I do it?
Thanks in advance (4 Replies)
Discussion started by: mr_manii
4 Replies
6. Shell Programming and Scripting
Hi Everybody,
I have an layout file like below
f1 1 char 10,
f2 11 char 2,
f3 13 char 1,
lineend 14 char 1
Their I need to add a new field which would be like
f5 char 3,
f6 char 2
The o/p should be
f1 1 char 10,
f2 11 char 2,
f3 13 char 1,
f5 14 char 3,
f6 17 char 2 (3 Replies)
Discussion started by: mr_manii
3 Replies
7. Shell Programming and Scripting
Hi All ,
Kindly help me with this soln
awk '{printf "%s %7s \n", $1,$c}' infile
where
value of variable c I am externally giving input
But executing the above command shows all the columns of infile where as I want only 1st column of infile and 2nd column should print value c (8 Replies)
Discussion started by: Pratik4891
8 Replies
8. Shell Programming and Scripting
How can we a shell script and pass date parameters .I have 3 files comming from Datastage with |" delimited
I need append 3 files as above: File1:
P0000|"47416954|"AU|"000|"INS|"0000|"|"20060601|"99991231|"|"|"|"|"01
File 2:... (2 Replies)
Discussion started by: e1994264
2 Replies
9. Shell Programming and Scripting
Given a file like this:
abc
def
ghi
I need to get to
somestandardtext abc1 morestandardtext
somestandardtext def2 morestandardtext
somestandardtext ghi3 morestandardtext
Notice that in addition to the standard text there is the line number added in as well. What I conceived is... (4 Replies)
Discussion started by: edstevens
4 Replies
10. Shell Programming and Scripting
I have a data file that looks like this:
0.01 1 3822 4.97379915032e-14 4.96982253992e-09 0
0.01 3822 1 4.97379915032e-14 4.96982253992e-09 0
0.01 2 502 0.00993165137406 993.165137406 0
0.01 502 2 0.00993165137406 993.165137406 0
0.01 4 33 0.00189645523539 189.645523539 0
0.01 33 4... (3 Replies)
Discussion started by: kayak
3 Replies
LEARN ABOUT CENTOS
ldns-gen-zone
ldns-gen-zone(1) General Commands Manual ldns-gen-zone(1)
NAME
ldns-gen-zone - read a zonefile and print it while adding DS records and extra RR's
SYNOPSIS
ldns-gen-zone ZONEFILE
DESCRIPTION
ldns-gen-zone reads a DNS zone file and prints it.
It is build for speed, not for a nice formatting. The output has one resource record per line and no pretty-printing makeup.
DNSSEC data (NSEC, NSEC3, RRSIG or DNSKEY) is not stripped. You may want to use ldns-read-zone for that. Existing DS records are also not
stripped.
The idea is to use this tool for quickly generating a representative artificial zonefile from a real zonefile, to use it for testing pur-
poses.
OPTIONS
-a NUM Adds NUM extra artificial NS RRSets to the output. The RRSets owner names start with 'xn--' in an attempt to ensure uniqueness
(nl.-zone does not support IDN's - and this tool was written with that knowledge in mind).
An artificial NS RRSet has two NS records; ns1.example.com and ns2.example.com.
-p NUM Add NUM% of DS RRSets to the NS RRSets (anywhere between 1-4 DS records per RRSet).
-o ORIGIN
Sets an $ORIGIN, which can be handy if the one in the zonefile is set to '@' for example. If there is an $ORIGIN in the zonefile,
this option will silently be ignored.
-s This is the recommended way of processing large zones that are already sorted and canonicalized (ie lowercase). It skips the sorting
and canonicalization step that is required for properly grouping RRSets together (before adding any DS records to them. Skipping
this step will speed things up.
It is not recommended to use this option if you want to add DS records to unsorted, non-canonicalized zones.
-h Show usage and exit.
-v Show version and exit.
EXAMPLES
ldns-gen-zone -a 100000 -p 10 -s ./zonefile.txt
Read a zonefile, add 100.000 artificial NS RRSets and 10% of DS records, print it to standard output. Don't sort (will only work
well if the input zonefile is already sorted and canonicalized).
ldns-gen-zone -p 10 -s -o nl zonefile.txt | named-compilezone -s relative -i none -o zonefile_10.txt nl /dev/stdin
This creates a nicely formatted zone file with the help of named-compilezone. It adds 10% DS records to the .nl zone, reformats it
and saves it as zonefile_10.txt.
AUTHOR
Initially written by Marco Davids, several modifications added by Miek Gieben, both from SIDN.
REPORTING BUGS
Report bugs to <ldns-team@nlnetlabs.nl>.
BUGS
Only undiscovered ones.
CAVEATS
May require a machine with a considerable amount of memory for large zone files.
Fake DS records hashes are generated as digest type SHA-256 (RFC4509). Be aware not to change the DIGESTTYPE #define in the source code in
anything else but 2 if you want to keep things realistic.
Despite a number of efforts, this program is still not the fastest in the world.
COPYRIGHT
Copyright (C) 2010 SIDN. This is free software. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
10 June 2010 ldns-gen-zone(1)